The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 24, 2016
Filed:
Mar. 10, 2014
Tatsuya Takahashi, Shinagawa-ku, JP;
Kazuhiro Fujita, Machida, JP;
Toshiharu Murai, Kawasaki, JP;
Takehiro Nishimori, Yokohama, JP;
Ikuo Maeda, Sagamihara, JP;
Tatsuya Takahashi, Shinagawa-ku, JP;
Kazuhiro Fujita, Machida, JP;
Toshiharu Murai, Kawasaki, JP;
Takehiro Nishimori, Yokohama, JP;
Ikuo Maeda, Sagamihara, JP;
RICOH COMPANY, LTD., Tokyo, JP;
Abstract
A light source unit emitting a light on an optical axis includes a first light emitter to emit a light in a certain wavelength band, a second light emitter to emit a light in a wavelength band different from that of the first light emitter, a third light emitter to emit a light in a wavelength band different from those of the first and second light emitters, a lighting path through which the lights from the first, second, and third light emitters are guided to propagate on the optical axis and into which the light from the third light emitter is joined at a hindmost position in a traveling direction on the optical axis, and an optical adjuster to exert an optical effect on the light from the third light emitter and not to exert an optical effect on the light rays from the first and second light emitters.